Safety razor



Oct. 13, 1931. J GAISMAN 1,826,764

' SAFETY RAZOR Filed May 23. 1930 jag- I ig- ,6

i? 0 22 12 2 20 f i 5 5 VENT 1 LMM gm ATTORNEY l atented Oct. 13, 1931 UNITED STATES ATENT" OFFICE I HENRY'J'. GAISMAN, OF YORK, Y., ASSIGNOR, BY MESNE ASSIGNMENTS, TO GIL- LETTE SAFETY RAZOR COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF DELAWARE SAFETY RAZOR The present invention relates to that class of safety razors in which two clamping members, a guard member and a blade backing member, are provided, and a thin flexible blade is clamped'between the guard and backing members to retain the cutting edges of the blade in shaving relation to the guard teeth. The invention pertains more particularly to that type of the above-mentioned class of safety razors wherein the blade co-operates with one of the clamping members to retain the blade in shaving relation thereto, and the blade also co-operates with the other clamping member to retain the latter in proper relation to the blade for shaving pur ,oses. A safety razor of'this type 'is d'escribec in U. S. Patent :tj:1,633,739, granted to meon June 28,1927.

The razor described in the patent mentioned comprises, generally speaking, a guard member on which is provided a non-cylindrical positioning stud, adapted to be seated in an aperture in theblade', said positioning stud and said aperture having a co-operative contour to retain the 'blade in shaving posi-- tion' on the guard member, said blade' also having recesses in-its transverse edges adapted to receive projections onthe backing mem-- ber of the structure, said recesses and projections co-operating for retaining the backing in shaving relation to the blade and the guard member, in combination with means for clamping the guard'and backing members on the blade.

' The main object of the present invention is to simplify the construction above referred to by doing away with the recesses in the blade, and by so arranging the projections on the backing membenthat they act also as means for reinforcing the corners of said [backin member and. as corner protecting means for the blade.

, Another object of the invention is to provide a simple and eflicient blade holder of the typmmentionedwhich is capable of manufacture on a commercial scale, or in other words one which is not so diflicult to make as to be beyond the reasonable cost of such an implement. I

With these and other objects in view, which 1930. Serial No. 454,989.

will more fully appear as the nature of the invention is better understood, the same consists in the combination, arrangement and ing from the spirit or sacrificing any of the advantages'of the invention. One of the many possible embodiments of the invention is illustrated in the accompanying drawings, in which:- 1

Figure 1 is an end View of a razor constructed in-accordance with the present invention; Fig.2 isa section taken on line 2 -2 of Fig. 1; Fig. 3 is a section ,taken on line 33 of Fig. 2, part of the backing member being shown in plan view; Fig. 4 is a top plan View of the guard member of the improved razor; Fig. 5 is a bottom plan view of the blade backing member of the construction;

connection with the razor herein described.

Referring now to the drawings, the nu; meral 10 indicates the guard member, the numeral 11 the blade, and the numeral 12 the backing member of the razor, so organized that the said blade may be clamped between said members. The guard member is and Fig. 6 is a plan view of-ablade used 'in a shown of the variety having guard teeth 13 in its opposite longitudinal edges, along which the cutting edges 14 of the blade may extend in an ordinary way for shaving. Anysuitable means may be provided for causing the blade to be clamped between the guard member and thebackingmember. In the example illustrated in the drawings, the backing member is provided with a screw-thread ed pin 15 which is adapted to pass through a central opening 16 in the blade and througha hole 17 in the guard member, and to engage a screw-threaded socket 18 in a handle 19, .to

clamp the parts together for shaving. The

hole 17-is of a size and configuration that the pin 15 is adapted'topass tlierethrough with out positioning the backing member in relation to the the guard member.

-On the guard member are provided two non-cylindrical positioning studs 20, one on either side of the hole 17 which are adapted to be seated in apertures 21 in the blade. Both the ositioning studs and the apertures may be 0 any suitable configuration, according to the requirements. It is preferred, however, to so design the positioning stud receiving apertures in the blade and to so space the same that they are adapted to receive each a cylindrical stud of the blade holders of the ordinary Gillette type of safety razors. As this feature is now well known and old in the art, it seems to be unnecessary to give a further detailed description thereof. In the underface of the backing member are provided recesses 22; to receive the free ends of the positioning studs QOwithout, however, making a connection between the guard and backing members. The backing member is positioned in relation to the blade by downwardly extending projections 23, one on each corner of the backing member, said projections bearing against the blade corners, as clearly shown in Figs. 1 'to 3, in-

- elusive, of the drawings,- but not contacting with the guard member, as shown in Fig. 3 of the drawings. The projections 23 on the backing member corners ex end'trans-.

versely beyond the longitudinal edges of the backing member and are dimensioned to form corner reinforcing means, so that, when the backing member is accidentally dropped or knocked againstkan object, the longitudinal edges of the backing member are not deformed. This is essential in view of the fact that it is highly-desirable to maintain the longitudinal edges of the backing member in the condition in which they are obtained in the process of manufacture. It will be readily seen that, if portions of these longitudinal edges are accidentally deformed, not only will the blade-notbe properly clamped upon the guard member but it may be broken or' cracked in the blade flexing operation. As

; appears from Fig. 3 of the drawings, the projections 23' are so located that they overlie the ends of the cutting e ges of the blade and thus constitute. blade corner protecting means.-

When the parts are to be assembled for use,

the blade is first placed upon the guard member so that the positioning studs. 20 extend through the blade apertures 21. The back tures to receive said positioning studs, a backing member for the blade, corner reinforcing means on said backing member adapted to engage the corners of the-blade for positioning said backing member in shaving relation to said blade and said guard member, said corner reinforcing means simultaneously forming guard teeth at the corners of said guard member, and means to clamp said blade between said guard and backing members.

2. A safety razor, comprising a guard member, positioning studs thereon, a blade fitting upon said guard member having apertures to receive said positioning studs, a backing member for the blade, projections on said backing member adapted to engage the cor-- ners of the blade for positioning said backing member in shaving relation to said blade and said guard member, sald projections simultaneously forming guard teeth at the corners of said guard member, and means to clamp said blade between said guard and backing members. a i

Signed at New York, in the county of New York, and State of New York, this 16th day of May, A. D. 1930.

HENRY J. GAIS'MAN.

ing member 12 is then applied to the blade, its I clamping pin 15 being passed through the blade opening 16 and the guard member hole 17, the projections-23 on the backing member spect to the guard member. When then the handle is' screwed upon the pili 15, the elements of the razor are firmly clamped to- I being caused to bear against the blade cor- I v ners, whereby the backing member, by means of the blade, is properly-positioned with re- 

